<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <!-- 以借助 script 标签直接通过 CDN 来使用 Vue： -->
    <script src="./JS/vue.js"></script>
  </head>
  <body>
    <div id="app">Hello</div>

    <script>
      var app = new Vue({
        el: "#app",
        data: {},
      });
    </script>
  </body>
</html>
